23LC512T-I/SN

Memory IC Overview

The Microchip Technology 23LC512T-I/SN is a 512-Kbit Serial Static Random Access Memory (SRAM) device. It features an SPI-compatible bus interface supporting standard, Dual I/O (SDI), and Quad I/O (SQI) modes with a maximum clock frequency of 20 MHz for Industrial temperature grades. The memory organization is 64K x 8 bits, utilizing a 32-byte page structure. Operating voltage ranges from 2.5V to 5.5V, with an industrial operating temperature range of -40°C to +85°C. The device is housed in an 8-lead Small Outline Integrated Circuit (SOIC) package.

Memory IC Feature Summary

• Supports SPI, SDI, and SQI interface modes for flexible data transfer speeds
• Enables unlimited read and write cycles without write time delays
• Includes Hold functionality to suspend serial sequences without retransmission
• Operates within a wide supply voltage range suitable for various logic levels

Memory IC Applications

• Data logging and storage in microcontroller-based systems
• Non-volatile data backup using external power sources
• High-speed buffer memory for embedded applications
• Configuration storage in industrial control devices

Memory IC Procurement Notes

Verify the specific suffix 'SN' corresponds to the 8-lead SOIC package type required for your PCB layout. Confirm that the 'I' designation matches the necessary industrial temperature range (-40°C to +85°C). Ensure the host controller supports the desired SPI mode (Standard, Dual, or Quad) as pin functions change between modes. Check RoHS compliance status if environmental regulations apply to your assembly process.

Memory IC Selection Notes

Select this component when a volatile memory solution with fast access times and high endurance is needed. It is suitable for designs requiring more speed than EEPROM but lower cost than parallel SRAM. Consider the SOIC package dimensions against available board space. Verify that the system voltage aligns with the 2.5V to 5.5V operating range to ensure reliable signal integrity across all logic states.

Memory IC Part Context

This part belongs to the 23LC512 family of Serial SRAM devices from Microchip Technology. It shares functional similarities with the 23A512 variant, differing primarily in the supported supply voltage range. The family is designed to replace parallel SRAM in space-constrained applications while offering higher density than typical EEPROM alternatives. It interfaces directly with SPI ports found in many popular microcontroller families.

Memory IC Replacement Considerations

The 23LC512-I/ST serves as a direct package alternative in the TSSOP format. The 23LC512-I/P is available in an 8-lead PDIP package for through-hole applications. These parts share identical electrical characteristics and pinouts relative to their respective packages.